After a recent move in her image towards raunchy videos and figure-hugging stage outfits, teen singer Miley Cyrus has taken the next big step in her bid to shed her innocent image with a risqué home-made film.

The clip circulating on the internet shows the former squeaky clean star, best-known for playing Hannah Montana, apparently smoking a hallucinogenic herb from a bong.

"Is that me tripping!?", Cyrus exclaims in the video after smoking the substance from the large glass pipe at a party.

She then mistakes another reveller for her ex-boyfriend, actor Liam Hemsworth